German microsonic sensors microsonic models microsonic prices

microsonic pressure sensors for level measurement. Submersible hydrostatic level transmitters (level gauges) operate on the principle that the static pressure of the measured liquid is proportional to its height. They use advanced imported isolated diffused silicon sensing elements or ceramic capacitive pressure sensors to convert static pressure into electrical signals, which are then temperature-compensated and linearized into standard electrical signals (typically 4–20mA/15VDC).

microsonic sensor classification

1) Potentiometric displacement sensors convert mechanical displacement into resistance or voltage outputs with a linear or arbitrary functional relationship. Standard linear and rotary potentiometers can be used as linear and angular displacement sensors, respectively. However, potentiometers designed for displacement measurement require a defined relationship between displacement change and resistance change. The movable wiper of the potentiometric displacement sensor is connected to the measured object. Displacement of the object causes a resistance change at the potentiometer's moving terminal. The magnitude of the resistance change reflects the displacement value, while an increase or decrease in resistance indicates the direction of displacement. A supply voltage is usually applied to the potentiometer to convert the resistance change into a voltage output. In wire-wound potentiometers, resistance changes in steps corresponding to the turn resistance as the wiper moves, resulting in a stepped output characteristic. If such a displacement sensor is used as a feedback element in a servo system, excessive step voltages can cause system oscillation. Therefore, the resistance per turn should be minimized during potentiometer manufacturing. Another major disadvantage of potentiometric sensors is susceptibility to wear. Their advantages include simple structure, large output signal, ease of use, and low cost. 2) Magnetostrictive displacement sensors precisely detect the absolute position of a moving magnetic ring using non-contact measurement technology to determine the actual displacement of the target product. The high precision and reliability of these sensors have been proven in thousands of practical applications. Since the moving magnetic ring that determines position does not directly contact the sensing element, the sensor can operate in extremely harsh industrial environments and is resistant to oil, solutions, dust, and other contaminants, with an IP protection rating of IP67 or higher. Furthermore, the sensor uses advanced materials and electronic processing technologies, enabling operation in high-temperature, high-pressure, and high-vibration environments. The sensor output is an absolute displacement value; data is not lost even if power is interrupted and reconnected, and re-zeroing is not required. Because the sensing element is non-contact, repeated measurements do not cause wear, significantly improving measurement reliability and service life. Magnetostrictive displacement sensors accurately measure position based on the magnetostrictive principle, generating a strain pulse signal where two different magnetic fields intersect. The measuring element is a waveguide containing a sensitive element made of special magnetostrictive material. The measurement process begins when the sensor's electronics generate a current pulse that travels along the waveguide, creating a circular magnetic field around it. When this field intersects with the magnetic field generated by the moving magnetic ring sleeved on the waveguide (which changes with position), the magnetostrictive effect produces a strain mechanical wave pulse signal within the waveguide. This strain mechanical wave pulse travels at a fixed speed of sound and is quickly detected by the electronics. Since the transmission time of this strain mechanical wave pulse within the waveguide is proportional to the distance between the moving magnetic ring and the electronics, measuring the time allows highly precise determination of this distance. Because the output signal is a true absolute value rather than a proportional or amplified signal, there is no signal drift or value variation, and periodic recalibration is not required. Magnetostrictive displacement sensors are high-precision, long-stroke absolute position displacement sensors manufactured based on the magnetostrictive principle. They employ a non-contact internal measurement method. Since the moving magnetic ring used for measurement does not directly contact the sensor itself, friction and wear are avoided, resulting in long service life, strong environmental adaptability, high reliability, good safety, and suitability for automated system operation, even in harsh industrial environments. Additionally, they withstand high temperatures, high pressures, and strong vibrations, and are now widely used in mechanical displacement measurement and control.

microsonic sensor operating principle

Magnetostrictive displacement (level) sensors accurately measure position based on the magnetostrictive principle, generating a strain pulse signal where two different magnetic fields intersect. The measuring element is a waveguide containing a sensitive element made of special magnetostrictive material. The measurement process begins when the sensor's electronics generate a current pulse that travels along the waveguide, creating a circular magnetic field around it. When this field intersects with the magnetic field generated by the moving magnetic ring sleeved on the waveguide (which changes with position), the magnetostrictive effect produces a strain mechanical wave pulse signal within the waveguide. This strain mechanical wave pulse travels at a fixed speed of sound and is quickly detected by the electronics. Since the transmission time of this strain mechanical wave pulse within the waveguide is proportional to the distance between the moving magnetic ring and the electronics, measuring the time allows highly precise determination of this distance. Because the output signal is a true absolute value rather than a proportional or amplified signal, there is no signal drift or value variation, and periodic recalibration is not required.

microsonic sensor application areas

Widely applicable for level measurement and control in various liquid tanks across industries such as petroleum, chemical, water conservancy, pharmaceutical, food, and beverage, as well as in aerospace refueling systems, automotive refueling systems, diesel refueling systems, various hydraulic tanks, hydrological monitoring, and water treatment. Magnetostrictive displacement sensors are high-precision, long-stroke absolute position displacement sensors manufactured based on the magnetostrictive principle. They employ a non-contact internal measurement method. Since the moving magnetic ring used for measurement does not directly contact the sensor itself, friction and wear are avoided, resulting in long service life, strong environmental adaptability, high reliability, good safety, and suitability for automated system operation, even in harsh industrial environments (such as those prone to oil, dust, or other contamination) [01]. Additionally, they withstand high temperatures, high pressures, and strong vibrations, and are now widely used in mechanical displacement measurement and control. Their stroke can reach 3 meters or longer, with a nominal accuracy of 0.05% F·S. For strokes over 1 meters, sensor accuracy can reach 0.02% F, S, and repeatability can reach 0.002% F·S, leading to widespread application in the petrochemical, aerospace, electric power, and water conservancy industries.

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